Thank you for your questions, Do you mean to use this
setUseVertexAttributeAliasing(true) only in GL version that only supports
shaders ?
在2020年10月16日星期五 UTC+8 下午4:38:34<OpenSceneGraph Users> 写道：
> Hi ?
>
> OpenGL and OSG strandles and old fixed function pipeline era and shaders.
> You can select a pure shaders subset of OpenGL at compile time and runtime,
> and you can also toggle on/off some mappings the OSG provide between the
> GL2.x GLSL built in variables and osg_ equivalents useful for
> GLES2.x/GL3.x+.
>
> The scene graphs you build for each of these scenarios will need to be
> different - you can't use fixed function pipeline state with a GL version
> that only supports shaders. I know nothing about your particular .ive but
> my best guess is that it's not compatible with the subset of OpenGL you
> selecting.
>
> Robert.
>
> On Fri, 16 Oct 2020 at 03:55, OpenSceneGraph Users <
> osg-...@lists.openscenegraph.org> wrote:
>
>> env is system Win10 ,osg 3.6.4, osgearth 2.10.0,GTX1660 TI
>>
>> Why is there an error in the model texture display when this function is
>> turn on?
>>
>> const int width( 800 ), height( 450 );
>> const std::string version( "4.3" );
>> osg::ref_ptr< osg::GraphicsContext::Traits > traits = new
>> osg::GraphicsContext::Traits();
>> traits->x = 20; traits->y = 30;
>> traits->width = width; traits->height = height;
>> traits->windowDecoration = true;
>> traits->doubleBuffer = true;
>> traits->glContextVersion = version;
>> traits->readDISPLAY();
>> traits->setUndefinedScreenDetailsToDefaultScreen();
>> osg::ref_ptr< osg::GraphicsContext > gc =
>> osg::GraphicsContext::createGraphicsContext( traits.get() );
>> if( !gc.valid() )
>> {
>> osg::notify( osg::FATAL ) << "Unable to create OpenGL v" <<
>> version << " context." << std::endl;
>> return( 1 );
>> }
>> [image: Q20201012125957.png]
>>
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